How do I make animation nodes drive the vertices of my object?
Best to start by breaking down your problem:
- You want a node tree setup to control vertices of mesh
- Sound to drive the vertices

Check AN Templates for those two:
* Simple Sound Controller
* Random Vertices Offset

The YouTube demo is cool, but if node is missing, you probably can try to look for similar node.



Try a simpler setup first like maybe have a LINE and try to drive the vertices of the line by using sound.